Brick for flame-walls of water-tube boilers.



T. G. TURNER.

BRICK FOB FLAME WALLS OF, WATER TUBE BOILERS.

APPLICATION FILED JAN. 28, 1909.

Patented Dec. 2'7, 1910.

5 SHEET =SHEET 1.

n P l F Mew) w" 1 C Q M T. G. TURNER.

BRICK FOR FLAME WALLS or WATER TUBE BOILERS.

APPLICATION FILED JAN. 28, 1909. I ?9 6Q% Patented Dec. 27, 1910.

5 SHEETS-SHEET 2 T. G. TURNER.

BRICK FOR FLAME WALLS OF WATER TUBE BOILERS.

APPLICATION FILED $1111.28, 1909.

Patented Dec. 27, 1910.

5 SHEETS-SHEET 3.

T. G. TURNER.

BRICK FOR FLAME WALLS 0F WATERTUBE BOILERS.

' APPLIQATION FILED JAN. 28, 1909.

Patented Dec. 27, 1910.

5 SHEETS-SHEET 4.

T. G. TURN ER. BRICK FOR FLAME WALLS OF WATER TUBE BOILERS.

L APPLICATION FILED JAN. 28, 1909. 9,604 Patented Dec. 27, 1910.

5 8HEETBSHEBT 5.

Q/farweys ample, every four adjacent tubes.

THOMAS G. TURNER, OF NEW YORK, N. Y., ASSIGNOR TO TURNER RAFFLE-WALL &

BOILER COMPANY, A CORPORATION OF NEW YORK.

BRICK FOR FLAME-WALLS OF WATER-TUBE BOILERS.

avarice.

Specification of Letters Patent.

Patented Dec. 2'2, 1910.

Application filed January 28, 1909. Serial No. 474,765.

To all whom it may concern:

Be it known that I, THOMAS G. TURNER, a citizen of the United States,residing at New York city, in the borough of Manhattan, county and Stateof New York, have invented certain new and useful Improvements in Brickfor F lame-Walls of Water- Tube Boilers, of which the following is aclear, full, and exact descri. tion.

The object of this invent-ion is to rovide a flame wall or battle forsteam boilers of the water tube type composed of nestin fire bricks,which will be easily installed originally and in repair work and providea more perfect and more solid wall than is now secured, thereby insuringthe travel of the ases of combustion across all the tubes in t eirtravel instead of through the wall in art.

t has heretofore been suggested in United States Patent No. 808920 ofJanuary 2, 1906, to force apart every four adjacent tubes to permit abrick to be inserted sidewise between the tubes and then turned intoposition; so far as I am aware such device is the nearest prior art tomy invention. Such spreading of the tubes however requires time andstrenuous effort and does not result in a homogeneous fire wall for thebricks are chipped or broken on the edges to facilitate turning intoposition after location.

In carrying out my invention 1- provide a brick that is of a thicknesswhich will permit it to be slid into place between a row of tubes eitherdiagonally or at right angles to the tubes, and of a width which willpermit it to be turned 90 degrees when in place without displacing thetubes. This brick is referably provided with a long meeting ace forjoinder with a similar brick on a center line between two tubes and eachbrick is preferably provided with two curved seats for engagement withthe boiler tubes. When a second similar brick has been inserted the twoin appearance will be such a brick as described in the before mentionedpatent except that two bricks instead of one will be located between,say for ex- 1 do not however wish to linnt myself to two parts betweenevery four tubes, but it will be essential to have at least two partsbetween opposite rows of tubes diagonal or straight. The bricks mayhowever extend in long strips, at least two strips between each row,

meeting preferably in the center line between the tubes. After my bricksare in position I preferably secure them together for which purpose thelong meetin faces of the opposed bricks are provided with open grooves,preferably forming a circular opening between the bricks when they arein place. Into this space I insert a filler to join and secure the twobricks. This filler may be a core or tube of refractory material or athin metal tube with a refractory tube inside of the same, or I mayforce plastic clay into the roove by piston pressure, in which case fprefer to pass a rod through the ole after insertion to make it tubular.I pre er to make the filler in this manner that it may push the bricksof different sets into close contact and itself be capable of giving wayif necessary upon It will be obvious that the plastic clay will becomehard in the heat of the furnace.

The scope of my invention will be pointed out in the claims.

In the accompanying drawings, Figure l is a side elevation with the wallbroken away of a water tube boiler provided with flame walls of myinvention. Fig. 2 is a transverse section of ten tubes of said boilerdrawn to an enlarged scale on line 2-43 Fig. .1. Fig. 3 is a detailshowing how a brick is inserted into place between the rows of tubes.Fig. 4 is a similar view showing the carrier turned 90 degrees from Fig.3 to place the brick in place against the tubes. Fig. 5 shows a holderfor holding the brick in place before its companion brick is inserted.Fig. 6 is a detail at right angles to Fig, 5, showing the second brickbeing inserted. Fig. 7 is a view similar to F ig. 6' showing two rows ofbricks in place. Fig. 8 is a perspective view of my preferred form ofbrick. Fig. 9 is a view similar to Fig. 2, showing a modified form ofbrick. Fir. 10 is a side elevation partly in section 0 one type offiller. Fig. 11 is a similar view of another type of filler, and Fig. 12is a perspective view of a modified ship form of fire brick.

In the drawings, Fig. 1; 1 is the steam drum, 2 are the water tubes, 3the grate bars, 4 and 5 the balilepr flame wall frames of gisualcon-structionj'of a Babcock and .Wilcox boiler. The arrows show thedirection of circular grooves 8 will form a tube.

the travel of the products of combustion. In order to properly deflectthe gases flame walls 5, generally two thicknesses of brick are.provided. According to this invention the walls 5 are made of amultitude of nesting bricks such as 6 shown in perspective in Fig. 8.The brick 6 has one long meeting face 7 with a semicircular groove 8thereupon, a shorter parallel meeting face 7, and two curved surfaces 9and 10, the smaller curved surface 9 being adapted to rest on a. tube 30either below or above the brick and the curved surface 10 being adaptedto rest against a tube at one side of the brick, such curves formingseats for the bricks and preferably being of a different radius to thetubes To place the brick 6 in place, it is first grasped by a tool 12(see Figs. 3 and 4) inserted upward from the fire box between a diagonalrow of tubes sidewise, as shown in Fig. 3 until the tool comes into theposition as to height shown in. Fig. 4 when the tool will be rotated 90degrees to drop the brick 6 into place as shownin Fig. 4. The tool maythen be removed and a spring clamp tool 13 Fig. 5 inserted to hold thebrick in place if desired. A second brick 6 with the curved surface 9upward is then inserted by the tool 12 and turned op ositely from theturning of the first brick, see Fig. 6) which shows one brick held byclamp 13 and the second being slid into place, after turning, by thetool 12. When the bricks have been inserted as shown in Fig. 6, theclamp 13 is removed and the two meeting surfaces 7 brought together sothat the opposed semi- In such condition a tube 14 of fire clay orasbestos or a metal tube 15 with a refractory lining 16 may be insertedbetween the bricks to fill the groove and lock the bricks together. Or,I may fill the tube between the bricks with plastic clay 17, (see Fig.2) squeezing it out of a barrel 18 by means of a piston 19 and thusforcing the bricks of one set apart so that a close joint can be madewith bricks of adjoining sets. This spreading can be augmented bypassing a polnted mandrel 20' through the plastic clay 17 as shown inFig. 2, at the same time producing a tube which will give way before thebricks under undue expansion of the tubes 80. The plastic clay becomeshard and vitrified in the heat of the furnace.

In Fig. 7 two rows of bricks 6 and 6' areshown. This figure alsoillustrates how the flame plate 4 supports the backs of the bricks.

As shown in Fig. 2 the bricks 6 for the side of the flame wall arepreferably inserted sidewise to get proper support for the same. I haveshown the same shape of brick for such side but if desired specialshapes could be used to overcome the uneven edge presented in this view.In Fig. 9 all the bricks are inserted sidewise. The tool 12 is shown asa rod 21 having a pointed projection 22 thereon. A tube 23 slides overthe rod 21 and has a projection 24 at its end. The projections can bemoved with relation to each other and constitute merely an ordinary viseor clamp for the brick. The tool 13 is but a long rod 25 provided with aspring plate 26 secured at 27 and having an abutment 28 to press intothe groove 8 of a brick. When the second brick is in the position ofFig. 6 this tool can be withdrawn without displacing the first brick.

As shown in Fig. 12, the brick 31 is but a number of the bricks 6 ofFig. 8 in one long strip which if long enough can be pushed into placewithout the use of any tool.

In carrying out this invention, details of construction may be variedfrom those shown, and yet the essence of the invention be retained; someparts might be employed without others, and new features thereof mightbe combined with elements old in the art in diverse ways, although theherein described type is regarded as embodying substantial improvementsover such modifications.

As many changes could be made in the above construction, and manyapparently widely different embodiments of the invention could bemadewithout departin from the scope thereof, it is intended that a l mattercontained in the above description or shown in the accompanying drawingsshall be interpreted in an illustrative and not in a limiting sense. Itis-furt-hermore desired to be understood that the language used in thefollowing claims is intended to cover all the generic afid specificfeatures of the invention herein described, and all statements of thescope of the invention which as a matter of language might be said tofall therebetween.

I claim as my invention: 7

1. A water tube boiler having boiler tubes arranged in parallel seriesor rows, a flame wall composed of bricks arranged transversely of saidtubes, a brick thereof having curved recesses in one edge adapted to beseated upon adjacent tubes of a. row, said brick having an edge whichterminates short of the tubes of an adjacent row, a. similarly shapedbrick of said wall adapted to contact adjacent tubes of said adjacentrow having an edge which adjoins the last mentioned edge of the firstbrick, one line of separation between adjacent bricks that contact withadjacent rows of tubes passing within the space between adjacent rows,the other lines of separation being lines that connect centers of tubesof parallel rows.

2. A water tube boiler having boiler tubes arranged in parallel seriesor rows, a flame wall composed of bricks arranged transeteeoa versely ofsaid tubes, a brick thereof having curved recesses in one edge adaptedto be seated upon adjacent tubes of a row, said brick having an edgewhich terminates short of the tubes of an adjacent row, a similarlyshaped brickof said wall adapted to contact adjacent tubes of saidadjacent row having an edge which adjoins the last mentioned edge of thefirst brick, one line of separation between adjacent bric rs thatcontact with adjacent rows of tubes passing within the space betweenadjacent rows, the other lines of separation being lines that connectcenters of tubes of parallel rows, said first meeting edges havinggrooves therein and a filler in said groove.

3. A water tube boiler having boiler tubes arranged in parallel seriesor rows, a flame wall composed of bricks arranged transversely of saidtubes, a brick thereof having curved recesses in one edge adapted to beseated upon adjacent tubes of a row, said brick having an edge whichterminates short of the tubes of an adjacent row, a similarly shapedbrick of said wall adapted to contact adjacent tubes of said adjacentrow, havin an edge which adjoins the last mentione edge of the firstbrick, one line of separation between adjacent bricks that contact withadjacent rows of tubes passing within the space between adjacent rows,the other lines of separation being along lines that connect centers oftubes of parallel rows, said first meeting edges having grooves thereinand a filler in said groove, said filler being a tube.

4. In combination with the water tubes, and flame plate of a water tubeboiler, a plurality of bricks within the space between a lurality ofadjacent tubes and a filler forced iietween two bricks whereby theymaybe spread apart to be firmly seated upon adjacent tubes.

Signed at New York city this 26th day of January 1909.

. THOMAS G. TURNER. Witnesses:

EDWARD 'A. JARVIS, 1 -F.'WARREN WRIGHT.

